vivo 1904vivo 1904 : Wireless communication technologies Bluetooth, Wi-Fi : Connectivity technologies GSM, 4G, 3G, 2G, WCDMA, (B158), (B2358), FDD_LTE, (B1358), TDD_LTE(B384041)Vivo Y12 1904 is a smartphone released in June 2019 with 4 GB RAM, 64 GB storage, Helio P22 chipset, and 5000 mAh battery. It has a 6.35-inch